Radeon HD 6670 (OEM) 1GB vs Radeon R9 M280X

Intro

Compare those specifications to the Radeon R9 M280X, which uses a 28 nm design. AMD has clocked the core frequency at 900 MHz. The GDDR5 RAM works at a speed of 1375 MHz on this particular card. It features 896 SPUs along with 56 Texture Address Units and 16 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6670 (OEM) 1GB		63 Watts
Radeon R9 M280X		75 Watts
	Difference: 12 Watts (19%)

Memory Bandwidth

Theoretically speaking, the Radeon R9 M280X should be 38% faster than the Radeon HD 6670 (OEM) 1GB overall, because of its higher bandwidth. (explain)

Radeon R9 M280X		88000 MB/sec
Radeon HD 6670 (OEM) 1GB		64000 MB/sec
	Difference: 24000 (38%)

Texel Rate

The Radeon R9 M280X should be a lot (approximately 163%) more effective at anisotropic filtering than the Radeon HD 6670 (OEM) 1GB. (explain)

Radeon R9 M280X		50400 Mtexels/sec
Radeon HD 6670 (OEM) 1GB		19200 Mtexels/sec
	Difference: 31200 (163%)

Pixel Rate

The Radeon R9 M280X will be quite a bit (more or less 125%) more effective at anti-aliasing than the Radeon HD 6670 (OEM) 1GB, and also should be capable of handling higher screen resolutions without slowing down too much. (explain)

Radeon R9 M280X		14400 Mpixels/sec
Radeon HD 6670 (OEM) 1GB		6400 Mpixels/sec
	Difference: 8000 (125%)

Please note that the above 'benchmarks' are all just theoretical - the results were calculated based on the card's specifications, and real-world performance may (and probably will) vary at least a bit.

Price Comparison

Specifications

Memory Bandwidth: Bandwidth is the largest amount of information (counted in MB per second) that can be transported across the external memory interface in a second. The number is calculated by multiplying the card's interface width by the speed of its memory. If it uses DDR type memory, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed per second. This number is calculated by multiplying the total amount of texture units by the core speed of the chip. The better the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly write to its local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.